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Systems and methods for monitoring reduced pressure supplied by a disc pump system

a disc pump and system technology, applied in the field of disc pumps, can solve the problems that the high-amplitude acoustic resonance has not been employed in the disc-shaped cavity, and achieve the effect of reducing the dampening of displacement oscillations

Active Publication Date: 2016-01-12
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a disc pump system that generates pressure waves in a fluid using a driven end wall, which is a flexible material. The system includes an actuator, a pump body with a cavity containing the fluid, and an isolator to reduce dampening of the pressure waves. A valve is also included to allow fluid to flow through the system. The system measures the displacement of the driven end wall using a strain gauge that is operatively associated with the isolator. The technical effect of this invention is to provide a reliable and accurate measurement of the displacement of a pump's driven end wall, which can help improve the performance and efficiency of the pump.

Problems solved by technology

However, high amplitude acoustic resonance has not been employed within disc-shaped cavities in which radial pressure oscillations are excited until recently.

Method used

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  • Systems and methods for monitoring reduced pressure supplied by a disc pump system
  • Systems and methods for monitoring reduced pressure supplied by a disc pump system
  • Systems and methods for monitoring reduced pressure supplied by a disc pump system

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Embodiment Construction

[0040]In the following detailed description of several illustrative embodiments, reference is made to the accompanying drawings that form a part hereof. By way of illustration, the accompanying drawings show specific preferred embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is understood that other embodiments may be utilized and that logical structural, mechanical, electrical, and chemical changes may be made without departing from the spirit or scope of the invention. To avoid detail not necessary to enable those skilled in the art to practice the embodiments described herein, the description may omit certain information known to those skilled in the art. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the illustrative embodiments are defined only by the appended claims.

[0041]FIG. 1A is a side, cross-...

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Abstract

A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall. The system includes an actuator operatively associated with the driven end wall to cause an oscillatory motion of the driven end wall and an isolator is operatively associated with the peripheral portion of the driven end wall to reduce damping of the displacement oscillations. The isolator comprises a flexible printed circuit material that includes a strain gauge. The strain gauge measures data that may be used to determine the amount of pressure provided by the pump.

Description

[0001]The present invention claims the benefit, under 35 USC §119(e), of the filing of U.S. Provisional Patent Application Ser. No. 61 / 597,463, entitled “Systems and Methods for Monitoring Reduced Pressure Supplied by a Disc Pump System,” filed Feb. 10, 2012, by Locke et al., which is incorporated herein by reference for all purposes.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The illustrative embodiments of the invention relate generally to a disc pump for fluid and, more specifically, to a disc pump in which the pumping cavity is substantially cylindrically shaped having end walls and a side wall between the end walls with an actuator disposed between the end walls. The illustrative embodiments of the invention relate more specifically to a disc pump having a valve mounted in the actuator and at least one additional valve mounted in one of the end walls.[0004]2. Description of Related Art[0005]The generation of high amplitude pressure oscillations in closed cav...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): F04B51/00G01L1/22F04B43/04F04F7/00G01L9/00F04B43/09
CPCF04B51/00F04B43/046F04B43/095F04F7/00G01L1/22G01L9/0002
Inventor LOCKE, CHRISTOPHER BRIANTOUT, AIDAN MARCUS
Owner 3M INNOVATIVE PROPERTIES CO